Diazo-unsaturated monomer light sensitive compositions
US4289838A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1980 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/107
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improved compositions comprising solvent-soluble, negative-acting or positive-acting light-sensitive diazonium compounds and solvent-soluble unsaturated monomers which are the products of about two equivalents of an organic diisocyanate with about one equivalent of an active hydrogen-containing organic compound, e.g., an alcohol or amine, preferably a polyol, which products are subsequently reacted with an unsaturated compound which contains an active-hydrogen, preferably in a hydroxyl group, available to react with the remaining isocyanate groups. The compositions can be coated onto suitable base sheet materials to form presensitized lithographic printing plates, proofs for multi-color printing, visual aids, printed circuits and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.